(19)
(11) EP 2 139 637 A1

(12)

(43) Date of publication:
06.01.2010 Bulletin 2010/01

(21) Application number: 08742188.9

(22) Date of filing: 21.03.2008
(51) International Patent Classification (IPC): 
B23K 26/00(2006.01)
F16J 15/34(2006.01)
(86) International application number:
PCT/US2008/003741
(87) International publication number:
WO 2008/115577 (25.09.2008 Gazette 2008/39)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

(30) Priority: 21.03.2007 US 919304 P

(71) Applicant: Flowserve Management Company
Irving, TX 75039 (US)

(72) Inventor:
  • YOUNG, Lionel
    Murrieta, California 92591 (US)

(74) Representative: Vleck, Jan Montagu 
Reddie & Grose 16 Theobalds Road
London WC1X 8PL
London WC1X 8PL (GB)

   


(54) LASER SURFACE TREATMENT FOR MECHANICAL SEAL FACES